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20-6 SPARC Enterprise M8000/M9000 Servers Service Manual • October 2012
5. Switch off all main line switches for the AC section (ACS) in the power supply
system.
The XSCF STANDBY LED (green) on the operator panel goes out. (See Section 4.5.3,
“Main Line Switch Locations” on page 4-30)
Note – If the optional three-phase 200 VAC input power supply unit is installed, the main
line switches are located on the three-phase ACS.
Note – If the dual power feed option is installed, switch off the main line switches for both
power supply units.
Caution – After stopping all the domains, be sure to switch off the main line switches in
the power supply system to completely shut off the supply of power.
6. Connect the clip of the antistatic wrist strap and of the antistatic mat to the server
grounding port. (See Section 1.4, “Antistatic Precautions” on page 1-9)
7. Ensure that the metallic underside of the wrist strap is in direct contact with your
skin.
The wrist strap should be snug around the wrist so that it does not rotate. (See Section 1.4,
“Antistatic Precautions” on page 1-9)
Caution – Before handling FRUs, be sure to connect the clip of the antistatic wrist strap
and of the antistatic mat to the server grounding port, and attach the band of the wrist strap
to one of your wrists. Place the FRUs on the grounded antistatic mat. Failure to take these
antistatic measures might result in serious damage.
8. Release the following components from the BP to be replaced or remove them
completely from the cabinet so that you can access the BP.
For M8000 server (See
FIGURE 20-6):
Perform the following operations from the front of the unit:
a. Release all mounted CMUs from the BP. (See Chapter 6)
b. Pull two DDCs off the BP. (See Chapter 19)
c. Pull two XSCF units off the BP. (See Chapter 11)